Mono Portable Speaker Denver BTL-311 Multicolour

The Mono Portable Speaker Denver BTL-311 Multicolour is a compact, battery-powered mono speaker designed for portable audio playback. With a rated output of 5 W RMS and wireless connectivity, the Denver BTL-311 supports streaming from MP3 players, smartphones and other Bluetooth-enabled devices. The built-in 1200 mAh rechargeable battery provides extended playtime, and the multicolour finish makes it a visible, easy-to-carry option for outdoor use, small gatherings or everyday listening.

Advantages

The speaker combines simple wireless pairing and a portable form factor to deliver straightforward audio playback without complex setup. Its 5 W RMS power is tuned for clear mono sound suitable for voice and casual music listening. The integrated 1200 mAh battery allows prolonged use between charges, while the lightweight construction and multicolour design make it convenient to transport and visually distinct.

Suitable for

• Casual music listening at home or outdoors
• Small parties and social gatherings
• Use with MP3 players, smartphones and tablets via wireless connection
• Portable audio for travel, picnics and short trips

Key specifications

• Output power: 5 W RMS
• Speaker configuration: Mono (single speaker)
• Battery capacity: 1200 mAh (rechargeable)
• Connectivity: Wireless (Bluetooth-compatible)
• Weight: 0.6 kg
• Product colour: Multicolour

How to use

Charge the built-in battery fully before first use using the supplied charging cable. Power on the Denver BTL-311 and enable Bluetooth on your audio source; select the speaker from the list of available devices to pair and start streaming. Adjust volume from the connected device or from any controls on the speaker if provided. After listening, power off the speaker to conserve battery and recharge as needed.

Recommendations

For reliable performance, avoid exposing the speaker to heavy moisture or prolonged direct sunlight. Use at moderate volumes to preserve battery life and reduce distortion. When not in use for extended periods, store the speaker partially charged and recharge every few months to maintain battery health.